LIGHT-EMITTING DEVICE
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United States of America Patent
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Mar 24, 2015
filing date -
Apr 7, 2008
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Abstract
Organic semiconductor layers comprise between a first electrode and a photoelectric converting layer a light extraction improving layer that contains at least silver or gold in part as a component, partially reflects light, and has transparency. The light extraction improving layer is in contact with or is inserted into a functional layer containing, for example, an organic semiconductor material, an oxide, a fluoride, or an inorganic compound having strong acceptor properties or strong donor properties with an ionization potential of 5.5 eV or higher, within the organic semiconductor layers.
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